contrib/*: Hardcode program names

Add a read-only variable "$myname" to every contrib script and hardcode
program names instead of relying on "$0". The variable name "$myname"
was chosen because it is already used in pacman and because we use
"$myver" to specify the program version in the official scripts.

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/contrib/paccache.in b/contrib/paccache.in
index eae547dc..847d44fb 100755
--- a/contrib/paccache.in
+++ b/contrib/paccache.in
@@ -20,6 +20,8 @@
 
 shopt -s extglob
 
+declare -r myname='paccache'
+
 declare -a candidates=() cmdopts=() whitelist=() blacklist=()
 declare -i delete=0 dryrun=0 filecount=0 move=0 needsroot=0 totalsaved=0 verbose=0
 declare    cachedir=@localstatedir@/cache/pacman/pkg delim=$'\n' keep=3 movedir= scanarch=
@@ -174,9 +176,9 @@ summarize() {
 
 usage() {
 	cat <<EOF
-usage: ${0##*/} <operation> [options] [targets...]
+usage: $myname <operation> [options] [targets...]
 
-${0##*/} is a flexible pacman cache cleaning utility, which has numerous
+$myname is a flexible pacman cache cleaning utility, which has numerous
 options to help control how much, and what, is deleted from any directory
 containing pacman package tarballs.